The CPC areas currently undergoing maintenance (MP) or revision (RP) are listed in the table below together with the corresponding project number. The outcome of these projects will be summarized in a Notice of Change pre-released one month before the corresponding changes are implemented in the CPC scheme.
Project |
Status |
CPC |
Title |
MP12350 |
Active |
A01B, B21D, B23Q, B27B, B62K, C07C, C07H, C08F, C09B, D06B, E04B |
[IPC2025.01](M818) Review of non-specific references in scheme and definitions |
RP12462 |
Active |
A01G |
[IPC2025.01](F188) Protective coverings for plants; Devices for laying-out coverings |
RP10470 |
Active |
A01G |
Soilless cultivation, hydroponics |
RP12401 |
Active |
A01K |
Fish-hooks; Artificial baits for fishing |
RP12330 |
Active |
A01K |
[IPC2025.01](C528) Rearing or breeding invertebrates; New breeds of invertebrates |
MP12337 |
Active |
A01K, A47J, A61D, B23G, C11B, D03D, D21C, D21D, D21H, E04H, F16N, F41B, G03B, G06Q, G07D |
[IPC2025.01](M829)(M621) Review the use of term “stock” throughout the IPC scheme and definitions |
RP11659 |
Active |
A01K, A61D |
Animal husbandry |
RP12357 |
Active |
A01N, C12N |
[IPC2025.01](C527) Preservation of living parts of humans or animals |
RP12370 |
Active |
A21D |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP12366 |
Active |
A23B |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP12367 |
Active |
A23C |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP12368 |
Active |
A23D |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP12381 |
Active |
A23F |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP12382 |
Active |
A23G |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP12369 |
Active |
A23L |
[IPC2025.01](C525) Preservation of foods, foodstuffs or non-alcoholic beverages |
RP10480 |
Active |
A41G |
ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS |
RP10469 |
Active |
A45C, A45F, G06F, H04B, H04M |
Storage receptacles distinction from protective covers Scheme modifications and new defs. |
MP12463 |
Active |
A47C |
[IPC2025.01](M274) Removal of non-limiting references in subclass A47C |
RP12362 |
Active |
A61B |
[IPC2025.01](M262) Removal of non-limiting references in subclass A61B |
RP10481 |
Active |
A61B |
Other methods or instruments for diagnosis |
MP11897 |
Active |
A61B |
Removal of non limiting references from scheme |
MP12467 |
Active |
A61B, B25J, G04C, G05B, H03K, H04W |
[IPC2025.01](M837) Review the use of terminology "master/slave" |
MP12363 |
Active |
A61F |
[IPC2025.01](M264)(F168) Removal of non-limiting references in subclass A61F |
RP11992 |
Active |
A61G |
TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS |
MP12470 |
Active |
A61H, A61M |
[IPC2025.01](M634) Artificial respiration; Heart stimulation; Devices for influencing the respiratory system of patients by gas treatment |
RP11991 |
Active |
A61J |
CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES |
RP12360 |
Active |
A61K |
[IPC2025.01](F179) Cellular immunotherapy |
RP12262 |
Active |
A61K |
A61K48 Gene Therapy |
RP11785 |
Active |
A61K |
Changes to A61K41 |
MP12460 |
Active |
A61K |
[IPC2025.01](F182) Liposomes |
MP11676 |
Active |
A61K |
Definitions A61K9 and A61K47 |
RP10468 |
Active |
A61K, Y10S |
Bacterial antigens |
RP11946 |
Active |
A61M |
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way |
RP12149 |
Active |
A63B, A63C |
SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE |
RP10476 |
Active |
B01D |
Selective adsorption, e.g. chromatography |
RP11802 |
Active |
B01J |
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof |
MP10332 |
Active |
B01J |
C-SETS |
MP11959 |
Active |
B01L |
Removal of additional NLR |
RP11745 |
Active |
B05B |
Spraying apparatus |
RP11955 |
Active |
B08B |
Cleaning |
RP12361 |
Active |
B08B, B24B |
[IPC2025.01](F160) Cleaning by methods involving the use of tools, brushes, or analogous members |
RP12170 |
Active |
B21C |
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL |
MP12461 |
Active |
B23K |
[IPC2025.01](F185) Auxiliary devices or processes for soldering, unsoldering, welding etc |
RP12290 |
Active |
B29C |
Extrusion moulding |
MP12266 |
Active |
B29D, B60C, G01H, G01M, H01H |
M830 follow-up "imbalance" vs. "unbalance" correction |
RP11669 |
Active |
B32B, D01D, D04H |
Deleting outdated Warnings and not used groups in D04H |
RP12458 |
Active |
B60K |
[IPC2025.01](F170) Instrumentation or dashboards for vehicles |
RP12459 |
Active |
B64D |
[IPC2025.01](F175) Aircraft powered by electric energy [NET] |
RP12358 |
Active |
B65D |
[IPC2025.01](F157) Containers or packages with special means for dispensing contents |
RP12344 |
Active |
C01F, C01G |
[IPC2025.01](F168)(M834) Compounds of manganese, cobalt or nickel |
RP11836 |
Active |
C04B |
Fillers for mortars, concrete or artificial stone |
MP12313 |
Active |
C07D |
Heterocyclic Compounds Guidance Headings |
RP12293 |
Active |
C07F |
Housekeeping in C07F7 and C07F9 |
MP11852 |
Active |
C07G |
C07G scheme and definition changes |
RP11530 |
Active |
C07K |
Peptides: Peptides having more than 20 amino acids, and Immunoglobulins; Ion Channels (C07K14) |
RP12019 |
Active |
C08C |
C08C19 Scheme and definitions |
RP12030 |
Active |
C08G |
Polysiloxanes C08G77 |
RP12347 |
Active |
C08L |
[IPC2025.01](F172) Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers |
RP11804 |
Active |
C10M, C10N |
To clarify what classifies in C10M & C10N |
RP11657 |
Active |
C12N |
C12N9 IPC alignment |
MP12018 |
Active |
C12N |
Mutation or genetic Engineering |
MP12083 |
Active |
C21B, C21C |
NLR in C21B and C21C |
MP12140 |
Active |
C22C |
ALLOYS |
RP12250 |
Active |
C23C, E02B, F16H, F16J, G01R, H03M |
Removal of outdated warnings |
MP12469 |
Active |
F01B |
[IPC2025.01](M277) MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES |
MP12311 |
Active |
F01N |
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES |
MP12247 |
Active |
F02F |
CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES |
MP12294 |
Active |
F02N |
Starting of combustion engines; Starting aids for such engines, not otherwise provided for |
RP10485 |
Active |
F16H |
GEARING |
MP12108 |
Active |
F16L |
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL |
RP11830 |
Active |
F16M |
FRAMES, CASINGS, OR BEDS OF ENGINES |
RP12316 |
Active |
F21S |
Portable and non-portable lighting devices |
RP12345 |
Active |
F22B |
[IPC2025.01](M268) Removal of non-limiting references in subclass F22B |
MP12348 |
Active |
F22D |
[IPC2025.01](M271) Removal of non-limiting references in subclass F22D |
MP12349 |
Active |
F22G |
[IPC2025.01](M272) Removal of non-limiting references in subclass F22G |
RP12426 |
Active |
F23B |
METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL |
RP12295 |
Active |
F23D |
Burners |
RP12411 |
Active |
F24D, F24H |
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL |
RP12292 |
Active |
F25B |
Indexing scheme associated with refrigeration machines |
MP12343 |
Active |
F27B |
[IPC2025.01](M269) - F27B: Furnaces, Kilns, ovens, or retorts in general; open sintering or like apparatus IPC implementation of Removal Non-Lim Ref |
RP12464 |
Active |
F27D |
[IPC2025.01](F184) Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases |
MP12331 |
Active |
F27D |
[IPC2025.01](M273) Removal of non-limiting references in subclass F27D |
RP12222 |
Active |
F41G |
Sighting devices |
MP12034 |
Active |
G01C |
Measuring, follow-up project |
RP11803 |
Active |
G01N |
G01N30 Chromatography |
MP12468 |
Active |
G01N |
[IPC2025.01](M832) Review of the limiting reference in group G01N 15/00 referring to subclass C12Q and Note 1 after C12Q subclass title |
MP12332 |
Active |
G05F |
[IPC2025.01](M259) Removal of non-limiting references in subclass G05F |
RP12338 |
Active |
G06F |
[IPC2025.01](F178) Information retrieval, database structures or file system structures for unstructured textual data |
RP12336 |
Active |
G06F |
[IPC2025.01](F177)Preventing errors by testing or debugging software |
RP12334 |
Active |
G08G |
[IPC2025.01](F176)Traffic Control Systems for aircrafts |
RP12174 |
Active |
G21B |
FUSION REACTORS |
MP12252 |
Active |
H01C |
Resistors |
RP12035 |
Active |
H01F |
MAGNETS |
RP12465 |
Active |
H01L |
[IPC2025.01](C514) Inorganic electric semiconductor devices |
MP12098 |
Active |
H01L |
Arrangements for connecting or disconnecting semiconductor or solid-state bodies |
RP12333 |
Active |
H01L, H10F |
[IPC2025.01](C515) SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION |
RP12457 |
Active |
H01L, H10H |
[IPC2025.01](C516) Light-emitting semiconductor devices with potential-jump barrier or surface barriers |
RP12335 |
Active |
H02K |
[IPC2025.01](F155) Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines |
MP12386 |
Active |
H03G |
Follow-up of IPC2024 implementation project to correct NLR & other issues in CPC |
MP12364 |
Active |
H03H |
[IPC2025.01](M249) Removal of non-limiting references in subclass H03H |
MP12387 |
Active |
H03L |
Follow-up of IPC2024 implementation project to correct NLR & other issues in CPC |
RP12306 |
Active |
H04L |
Network arrangements, protocols or services for addressing or naming |
MP12248 |
Active |
H04L |
Arrangements affording multiple use of the transmission path |
RP12303 |
Active |
H04M |
Warnings at H04M |
RP11832 |
Active |
H04W |
Synchronisation arrangements; Affiliation to network, e.g. registration Terminating affiliation with the network |
MP12109 |
Active |
H04W |
Power management, e.g. TPC (Transmission Power Control), power saving or power classes |
MP12365 |
Active |
H05H |
[IPC2025.01](M252)-Removal of non-limiting references in subclass H05H |
RP12466 |
Active |
H05K |
[IPC2025.01](F187) Casings, cabinets or drawers for electric apparatus |
MP12406 |
Active |
H10N |
[IPC2025.01](C513) ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR (part 2) |